Intermittent, single-lane closures of the Hood River-White Salmon Interstate Bridge have been expanded to include this coming Friday and Monday.  The closures were originally planned for yesterday and today.  They will run between the hours of 8:00 a.m. and 4:00 p.m. as crews complete preparation work required for the replacement of the lift span motors, and motorists should expect delays up to 20 minutes.  The actual replacement of the motors will close the bridge completely to all vehicle traffic for several nights in April.  This work requires a large crane lift of heavy equipment to the top of both lift span towers.  More information on the delays and closures are available at portofhoodriver.com.